Automatic switch-stand



(No Mode1.)

H. ELLIOT.

AUTOMATIC SWITGH STAND.

No. 3`95,964. Patented Jan. 8, 1889.'

UNITED STATES ATENT FFICE..

IIENRY ELLOT, OF ST. LOUS, MSSOURI.

AUTOMATIC SWITCH-STAN D.

SPECIFICATION forming part of Letters Patent No. 395,964, dated January 8, 1889.

Application filed May 31, 1888. Serial Ne. 275,537. (No model.)

To all whom 't may concrn:

Be it known that l', HENRY ELLIOT, of the city of St. Louis, in the State of Missouri, have invented a certain new and useful Improvement in Automatic Switch-stands, of which the following is a f ull, clear, and exact description, reference being had to the accompanying drawings, forniing part of this specification.

This stand is intended specially for split switches, and is constructed to be TGVBTSO by an engine running through it when it set in the wrong direction for such passage.

Figure I is an elevation of the deviee. Fig. II is an axial Vertical section at- II II, Fig. IV. Figs. III and IV are stepped horizontal sections at III IV, Fig. II, showing the movable parts in different positions. Fig. V is ahorzontal section at V V, Fig. II, showing the turn-head-in top View. Fig. VI is a detail front View. Fig. VII is a side View of the bolt-caso. i

The stand has a hollowpillar, 1,with feet 2, adapted to rest on two railway-ties, to which they are attachcd by spikes or bolts passing through the holes 3.

at is the signal-shatt, having a lower bear-ing, 5, and an upper hearing, (3. The formermay be cast in one piece with the pillar, as shown, while the lat-ter is in a block, 7 ,which isbolted to a tlange, S, at the top ot' the pillar. The lower end ot the shatt 4( has a crank, 9, for connection ot' the rod 10, which is connected' to the switch-rails.

ll is a collar on the shat't 4 bencath the hearing 5.

2 is a head keyed fast to the shaft at and hearing on the block 7. The head 12 has two jaws, lf, between which is the block or housing ill ot' the looking-bolt 15. The block ,H turns on a horizontal arbor, '16, passing through it and the jaws 13. The block lt turns through ni nety degrees :from 'the position shown in full lincsin Figs. I and II to the position shown. in brokenlines in Fig. l. The bolt 15 has a point, 17, with beveled faces 18 on each side and has a cross-bar, 19, 'from which extend gnhh-pins 20. The guide-pins are within sockets Bl and work inbearings 23 are spiralsprings surronuling the guidepins within the sockets 21,0ne end of each spring hearing against the cross-bar and the other against the inner end of the socket El.. The office of the springs 'is to push the bolt forward. The bolt when horizontal and in its forward position, as seen in III, engages in one of the recesscs ?et of the block 7 to prevent the turning of the head 12 and the signal-shaft 4, unless sufficient force is brought against the switch-rails to force back the bolt upon the springs 23, and thus disengage the point 17 from the recess 24.

Between the notches or recesses 24: is a tongue, 25, ending in a beveled point, over which the point 17 passes in going from one of the recesses ?et to the other. This point has two faces', 26, whose inclination is such that the point 17 will not rest on either of them, but will slide along the same to the recess 24 upon that side, so that the switch is (when at rest) always set to one side or the other.

The axis of the arber 16 is in a horizontal plane passing through the middle of the bolt 15, when the latter is in the position shown in Fig. II, so that no amount ot' power exerted on the point of the bolt will tend to turn the block lt on the arber.

27 are stop-pins limiting the forward movement of the bolt when its point is turned downward to release it from the block 7. (See broken lines in Fig. I. See Figs. II and VII.) I

The hearing soekets 22 have an inside screw-thread, and into these sockets are fitted screw-plugs 2% when it is desircd to remove the automatic clntracter of the stand, said plugs preventing the bacluvard movement of the bolt. In this case the switch is reversed only by hand, the bolt being released froni the recess by lifting the handle 99 from the position shown in full lines in Figs. I, II, and VI to the position shown in broken lines in Fig. l. This turns the block ll through onefourth ot' a circle. The shatt may now be turned by means ot' the handle, and the handle is then swnng down into the position shown in full lines which carries np the end l7 of the bolt into the recess 24-. The handle may be locked in this position, it desired, by apadlock inserted in the staple 30, which is fast upon. one of the jaws 13, and which passes through a slottcd lug, 31, upon the side o' the arm.

It will be seen that with the use of the screwplugs 28 the switch-stand may be used with IOO any form of switch. When worked hyhnnd, the point of the bolt cannot he lfted up into either of the reeesses ?ti until the su'iteh is in eorrett position tor use, se thnt the proper phuing of the mviteh-rniis is flHSlH'Cd.

1. The eonhinntion, in 21 switeh-stnid, oi' a fixed part having ioeking-rewsses, :n upright sigai-slntt, 4-, with n ernnk connected with the Switch-mnie, :ind 21 pivoted hioek upon the signnl-shnl't having-;1 Springd mit with beveled end arinpted to engng'e in the loeking-reeesses, SIihiflllii'tiiX ne nud l'orthe 1'urpose set forth.

2. The emnhinntion, in ;1` switch-Stand, of :1- iixed part, T, having reeesses 24,;1. bolt, 15, housed in i\ pivot ed hioek, H, guide-pine 20, spring& 233, serew-thrended hearing& 22, and screw-[mms 93, snhstnntinily ;is and tor the pu rpose Set fi rth.

The eonhin ttim, in :i switeh-stnnd, of the hioek 7, having reemses it, the signnl-shnft carrying a hend, 12, with hioek 14-, 'ivoted ihereto, fl spring-bolt Working in said hioek and ndfn'ted to (menge in the 'eeesses, nnd ;L hnndie, 29, upon the hioek 'l 1-, i'or the purptme Set Forth.

4:. The onhinntion in ;t switeh-simd, ol :t fixed part oi' the stauni-pilinr having looking'- '-eeesses, :in nprie'ht sign 'i-shnft a hioek pivoted upon the signni-eli'itt ;nd turning in n Vertical plane and carrying ahnndle, by which it may be turned, and :L spring-bolt having l'enring in the hlook and having a beveled end adapted to e'gage in the looking reeesses when the hioek is in :1 eertnin position, Suhstmtiaily as described.

The oonhinztion, in {L swiieh-staud, of n fixed part of the piilar hwin reeesses 94- and :i tongue, 25, the signnl shnft -i-, a head, 12, SG- eured to the shutt, t hioek, '1 "1-, 'pivoted to the head hy :i horizontal pivot or aii-hor, 11,(5, aboit, '15, working' in the hioek l lznnd hnvingguide pins 20, Slll'fOTHldCd hy springs 2 ,;i111m11e 29 upon the hioek 14,311 suimt 'intinily nsnnd tor the purpose Set torth.

ti. The emnhination, in :i S\\'i'(il-Stlild, of :L fixed part of the piihn' hnving reeesses 94: and :L t'n .'ne, 1,etwee' the 113008908 1110 signnishutt -t, ;1 head, 12, SOCUI'Mi to the sha ft, a hioek, '14 pivoted to the head hy :i horizontal 'pivot or nrhor, '10, :t hoit, 15, working endwise iu the hioek H- and having :guide-mms 20,5111'- rounded hy springs 23, 'l'or the purpose Set forth, nud :t h ndle, 20, upon. the hioek 14:, with :t siotted lug, ::L eneaging on n fixed Stiv pie, it), ;iii snhstmtinily ne set forth.

In presenee ot'-- HAML. KNIGHT, HENJN. A. KXIGH'I'. 

